Inspection of TCM and Its Circuits: Notes
WARNING: This page is about a different car, the 2006 Suzuki XL-7. However, it is still accessible from the selected car via links, so may be relevant.
TCM and its circuits can be checked at TCM wiring connectors by measuring voltage and resistance.
CAUTION:
TCM cannot be checked by itself, it is strictly prohibited to connect voltmeter or ohmmeter to TCM with connector disconnected from it.